geological
Showing 81–100 of 100 results
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Geological Specimens
Amethyst Cathedral Geode — Half
Mohs hardness: 7$331.89 -
Geological Specimens
Pele’s Tears — Hawaiian
Mohs hardness: 5–5.5$52.21 -
Geological Specimens
Oolitic Limestone — Polished Face
Mohs hardness: 3$47.02 -
Geological Specimens
Serpentinite — Display Grade
Mohs hardness: 3–4$73.35 -
Geological Specimens
Oolitic Limestone — Display Grade
Mohs hardness: 3$34.44 -
Geological Specimens
Garnet Schist — Specimen Grade
Mohs hardness: 5.5–7.5$74.71 -
Geological Specimens
Conglomerate — Tillite — Display Grade
Mohs hardness: varies$33.18 -
Geological Specimens
Obsidian — Mahogany Flow — Display Grade
Mohs hardness: 5–5.5$28.68 -
Geological Specimens
Pumice from Santorini — Large Specimen
Mohs hardness: 5.5–6$39.11 -
Geological Specimens
Desert Varnish Sandstone — Display Grade
Mohs hardness: 7$41.30 -
Geological Specimens
Septarian Nodule — Polished Half — Specimen Grade
Mohs hardness: varies$136.93 -
Geological Specimens
Radiolarite — Polished Face
Mohs hardness: 6.5–7$40.53 -
Geological Specimens
Shatter Cone — Large Specimen
Mohs hardness: varies$48.83 -
Geological Specimens
Shatter Cone
Mohs hardness: varies$118.83 -
Geological Specimens
Desert Varnish Sandstone — Polished Face
Mohs hardness: 7$23.42 -
Geological Specimens
Fulgurite — Desert Glass Tube — Polished Face
Mohs hardness: 5.5–6$71.61 -
Geological Specimens
Garnet Schist — Display Grade
Mohs hardness: 5.5–7.5$128.87 -
Geological Specimens
Suevite — Impact Breccia — Specimen Grade
Mohs hardness: varies$234.38 -
Geological Specimens
Eclogite — Display Grade
Mohs hardness: 6.5–7.5$121.59 -
Geological Specimens
Celestite Geode — Whole
Mohs hardness: 3–3.5$515.53